No offense taken. [Linked Image]

The customer does not care what happened at first, they average about $1,000,000 per week gross at each location. That is a little under $150,000 per day. What they do care about is the power is restored immediately.

Once they are back on line then they want to know what happened, then any clues are in the dumpster or scrap yard.

Yes the generator we bring in allows them to open for business. The generator burns 75 to 100 gallons per hour or about $3,600 per day plus rental costs.

In a case as bad as this it really does not matter what happened all the damaged equipment is replaced.

As far as power company fuse coordination it is not possible to fuse the primary side of the transformer in a way that will protect one set of parallel conductors.

Individual cable limiters would be an option I guess, but I have never seen that done.

Bob

Bob Badger
Construction & Maintenance Electrician
Massachusetts